Using modern physical and chemical methods of research, such as differential thermal analysis, scanning electron microscopy, atomic absorption spectrometry, the recovery process titanium dioxide with calcium hydride at different temperatures and the stoichiometric ratios of the raw material was studied. The influence of experimental conditions on the chemical and particle size distribution of the synthesized product have been established. The mathematical dependence of the qualitative composition of titanium powder from the reduction temperature and the stoichiometric ratio of the starting components was obtained. According to the results of the experimental data revealed that the increase in diameter of grains and reducing the specific surface area of the synthesized powder increases the content of titanium in the sample. It is shown that the main problem of obtaining titanium powder is their increased oxidation caused by high specific surface

Keywords: " titanium powder, titanium dioxide, calcium hydride, mixture, process calcium hydride-thermal reduction"

Sodium formate is quite popular products in industries. Currently, there is no independent production NаНСОО, because it is synthesized in the production of pentaerythritol and an additive product of this technology. For the production of the required quality sodium formate it is necessary treatment of the product. It is known that the crystallization processes are widely used in the technology of reactive substances qualifying, and the first stage of polythermal crystallization largely has a significant impact on the quality of the crystalline product. In the article the influence of hydrodynamics, cooling rate, the saturation temperature and concentration of pentaerythritol on supersaturated sodium formate solutions to overcooling was shown. The mathematical equations that valid describe the revealed features of the process have been received. The dependences should be considered in treatment technology of sodium formate crystallization method.

Keywords: sodium formate, metastable zone width, polythermal crystallization, oversaturation, impurities pentaerythritol

The article presents a study on the effect of ultrasonic reduction slurry flotation sylvinite concentrator to further process sylvinite ore concentration. Combined use of the purification process (ultrasonic processing, followed by gravitational desliming ore) in step slurry flotation increases cleaning efficiency minerals from insoluble impurities and reduces the loss of potassium chloride with slurry has been shown. Increased extraction of insoluble residue in the sink hydrocyclone at the combined way desliming without additional consumption of reagents will lead to lower rates of reagents on mechanical desliming, reducing the front sludge flotation and increase the productivity of the equipment in the sylvinite ore concentration technology of flotation process.

Keywords: ultrasonic treatment, slurry flotation, sylvinite ore concentration, potassium chloride